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-rw-r--r--fetchmail.man4
1 files changed, 4 insertions, 0 deletions
diff --git a/fetchmail.man b/fetchmail.man
index 3896971c..07a999a9 100644
--- a/fetchmail.man
+++ b/fetchmail.man
@@ -636,6 +636,10 @@ to already have a ticket-granting ticket. You may pass a username different
from your principal name using the standard \fB--user\fR command or by
the \fI.fetchmailrc\fR option \fBuser\fR.
.PP
+If your IMAP daemon returns the PREAUTH response in its greeting line,
+fetchmail will notice this and skip the normal authentication step.
+This could be useful, e.g. if you start imapd explicitly using ssh.
+.PP
If you are using POP3, and the server issues a one-time-password
challenge conforming to RFC1938, \fIfetchmail\fR will use your
password as a pass phrase to generate the required response. This